答案 0 :(得分:0)
使用一些动态SQL和Dense_Rank()函数
Declare @SQL varchar(max)
Select @SQL = Stuff((Select Distinct ',' + QuoteName(concat('Product',Dense_Rank() over (Order By Product)))
+ ',' + QuoteName(concat('Quantity',Dense_Rank() over (Order By Product)))
From myTable For XML Path('')),1,1,'')
Select @SQL = 'Select Orders,' + @SQL + '
From (
Select Orders,Item=concat(''Product'',Dense_Rank() over (Order By Product)),Val=cast(Product as varchar(max)) From myTable
Union All
Select Orders,Item=concat(''Quantity'',Dense_Rank() over (Order By Product)),Val=cast(Quantity as varchar(max)) From myTable
) A
Pivot (max(Val) For Item in (' + @SQL + ') ) p'
Exec(@SQL);
返回
Orders Product1 Quantity1 Product2 Quantity2 Product3 Quantity3
100 CUP 1 NULL NULL PLATE 2
101 CUP 1 NULL NULL NULL NULL
102 CUP 2 NULL NULL NULL NULL
103 CUP 1 GLASS 1 PLATE 3